typescript-hooks

typescript-hooks is a cursor rule for Claude Code, Cursor from fmflurry/settings-opencode. It costs 0 tokens per session (164 once invoked), scanned B, original, MIT.

TypeScript and JavaScript rules for actions that run after editing files or when an agent session stops. They include formatting, type checking, and warnings for console.log statements.

In plain words
What is it for?
Use them to run Prettier and the TypeScript compiler after edits and to audit modified files for console.log calls.
Why use it?
They catch type errors, keep edited code formatted, and flag debug output before it reaches production code.

Cursor rule for Claude CodeCursor

Written for Claude Code and Cursor: PostToolUse hook event, but also a Cursor rule (.mdc). Also seen: reads .claude/ paths.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is This file extends [common/hooks.md](../common/hooks.md) with TypeScript/JavaScript specific content..

Good fit Use them to run Prettier and the TypeScript compiler after edits and to audit modified files for console.log calls.

Compare 6 cursor rules from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/fmflurry/settings-opencode
agentmods
npx agentmods add rules/fmflurry/settings-opencode/typescript-hooks

Made for: Claude Code, Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for typescript-hooks

README.md
[![agentmods](https://agentmods.dev/badge/rules/fmflurry/settings-opencode/typescript-hooks/github.svg)](https://agentmods.dev/rules/fmflurry/settings-opencode/typescript-hooks)
Your own site
<a href="https://agentmods.dev/rules/fmflurry/settings-opencode/typescript-hooks"><img src="https://agentmods.dev/badge/rules/fmflurry/settings-opencode/typescript-hooks/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for typescript-hooks

Your own site · 80×15
<a href="https://agentmods.dev/rules/fmflurry/settings-opencode/typescript-hooks"><img src="https://agentmods.dev/badge/rules/fmflurry/settings-opencode/typescript-hooks.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 164 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00164
Opus 5.5 $0.00000 $0.00066
Sonnet 5.5 $0.00000 $0.00033
Haiku 4.5 $0.00000 $0.00016

Measured 8d ago against content hash f657ec50f1da, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

typescript-hooks scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

Configure in `~/.claude/settings.json`:
plugins/fmflurry-harness/rules/typescript-hooks.mdc · 21 lines

What it actually says

TypeScript/JavaScript Hooks

This file extends common/hooks.md with TypeScript/JavaScript specific content.

PostToolUse Hooks

Configure in ~/.claude/settings.json:

  • Prettier: Auto-format JS/TS files after edit
  • TypeScript check: Run tsc after editing .ts/.tsx files
  • console.log warning: Warn about console.log in edited files

Stop Hooks

  • console.log audit: Check all modified files for console.log before session ends
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 21 lines · 0 tokens per session scan B f657ec50f1da

Subscribe to this mod's changes

typescript-hooks is a cursor rule published in the GitHub repository fmflurry/settings-opencode (171 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 164 tokens. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-08.